Most...tend to suck. Lost of OC's (of course), grammar all over the place, and a couple of people who actually tried to write the fifth book (apperently titled "Cakes"). Other than that...nothing good.
My hope for it would be to touch on something no one in the series seems interested; the actual Oil Bug. We know nothing about it except that it set gas on fire, and it nailed us to the door in a day. And there's only one very lack-luster fic for it about some dude running through a burning city. Which would be great, except he obviously didn't know the Rusty Ruins are the remains of Seattle. Meaning that (as a Seattliete myself) I could write a much better one.